Delete comment from: Ken Shirriff's blog
Your transmitter may not be transmitting. Look at the transmitter with a camera. You should see it blinking.
Your IR receiver may not be working.
You may be using a transmitter that the code does not support.
You may have a wiring error on the receiver.
Nov 1, 2013, 4:13:49 AM
Posted to A Multi-Protocol Infrared Remote Library for the Arduino